Cavityrock
Rigid stone wool insulation board engineered for continuous insulation in exterior cavity walls and rainscreen assemblies.
$112.00
Lead Time: 5 business days
Shipping: Varies by size — calculated at checkout
What it does
ROCKWOOL Cavityrock provides continuous exterior insulation behind cladding in cavity walls, rainscreens, and open-joint façades. Its dual-density construction — denser face, softer back — delivers strength against fasteners while maintaining thermal performance.
When to use it
- Commercial cavity walls and rainscreen assemblies
- Open-joint and ventilated cladding systems
- Z-girt, clip-and-rail, or masonry-tie attachment
- NFPA 285-compliant fire-rated wall assemblies
Key benefits
- Noncombustible (flame spread 0)
- Vapor permeable and water repellent — supports drying
- Inorganic; will not promote mold growth
- Dimensionally stable for long-term performance
- Available with a black mat finish (Cavityrock Black) for open-joint cladding
Format
Rigid stone wool boards in thicknesses from 1" to 8", with R-values from R-4.2 to R-33.6.
Unit
| Length | 4 ft |
| Width | 24 in |
Key Specifications
| Property | Specification |
|---|---|
| Actual SqFt per Truckload | 19,968 sqft, 12,480 sqft |
| Coverage SqFt | 8 sqft |
| Coverage SqFt per Truckload | 19,968 sqft, 12,480 sqft |
| Height | 100, 48 |
| Packs per Pallet | 12.0 |
| Packs per Truckload | 312 |
| Pallets per Truckload | 26 |
| R-Value | R-12.6, R-8.4 |
| Actual SqFt | 8 sqft |
| SqFt per Pallet | 480, 768 |
| SqFt per Unit | 40, 64 |
| Units | Pack, Pallet, truckload |
| Units per Pack | 5, 8 |
| Units per Pallet | 60, 96 |
| Units per Truckload | 2,496, 1,560 |
| Weight | 530, 743 |
Material Health & Certifications
Professional Grade
Built for building professionals
Fast Shipping
Direct from manufacturer
Tech Support
Expert installation guidance
Certified Performance
Tested and documented
